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The USB 2.0 Type A front port supports Cisco USB flash drives with capacities from 128 MB to 8 GB using FAT32 file system. Some 3rd party USBs also work but not encrypted ones.
Attempting to use an ecnrypted USB on the front side USB port.
None. Encrypted USBs are not supported on C9300 switches USB port.
+ The closest feature ( but on the rear side USB port) similar/related to this, is the newly introduced Cisco USB 3.0 SSD which goes on the rear panel USB 3.0 port of the switch. This SSD is rather used for the application hosting capabilities of the switch and has the capability of defining a locally encrypted password to protect/lock access to the SSD content. Cisco Catalyst 9300 Series Switches Hardware Installation Guide | Chapter: Installing a USB 3.0 SSD https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/hardware/install/b_c9300_hig/b_c9300_hig_chapter_01010.html Interface and Hardware Components Configuration Guide, Cisco IOS XE Gibraltar 16.10.x (Catalyst 9300 Switches) | Chapter: Configuring USB 3.0 SSD https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/16-10/configuration_guide/int_hw/b_1610_int_and_hw_9300_cg/configuring_usb_3_0_ssd.html
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